Finding the Fourth Proportional to 98,314.11, 135,684.99 and 55,879.02
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Solution
The fourth proportional to 98,314.11, 135,684.99 and 55,879.02 is: 77,119.59
Step by Step Solution
- Step 1: Write the proportion equation
98,314.11 : 135,684.99 = 55,879.02 : x - Step 2: Convert to fraction form
98,314.11/135,684.99 = 55,879.02/x - Step 3: Cross multiply
98,314.11x = 135,684.99 × 55,879.02 - Step 4: Simplify right side
98,314.11x = 7,581,944,269.91 - Step 5: Solve for x
x = 7,581,944,269.91/98,314.11 - Step 6: Final answer
x = 77,119.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.